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ABB S200-ACN 490176050

Product Introduction:​
The ABB S200-ACN is part of the S200 family of DIN-rail mount miniature circuit breakers. “ACN” typically denotes the S200 series configured for AC network protection (commonly S201/S202/S203-C or -B characteristic). The order code 490176050 maps to a specific pole/current/trip combination in ABB’s Chinese/Asian catalog (S200-ACN line).
Category:
Description
Typical Specifications (S200 Series):
  • Poles:​ 1 / 2 / 3 / 4 Pole available (most common ACN variants are 1P or 2P)
  • Rated Current (In):​ 0.5 A – 63 A (exact depends on sub-suffix; common: 6 A, 10 A, 16 A, 20 A, 32 A)
  • Tripping Characteristic:​ B (3–5×In — residential/light commercial) or C (5–10×In — general industrial)
  • Rated Voltage:​ 230/400 V AC (1P: 230 V AC; 2P/3P/4P: 400 V AC); 48–125 V DC (depending on poles)
  • Breaking Capacity (Icn):​ 6 kA (standard S200); also available 10 kA
  • Rated Insulation Voltage (Ui):​ 440 V
  • Impulse Withstand (Uimp):​ 4 kV
  • Mechanical Endurance:​ >20,000 operations
  • Electrical Endurance:​ >10,000 operations
  • Mounting:​ 35 mm DIN rail (EN 60715)
  • Terminals:​ Cage clamp, accepts 1–25 mm² (solid) / 1–16 mm² (stranded)
  • Standards:​ IEC/EN 60898-1, IEC/EN 60947-2; some variants UL 1077 recognized
  • Housing Material:​ Self-extinguishing thermoplastic (Halogen-free options), RAL 7035 (light grey)
Features:
  • Current-limiting design
  • Finger-safe IP20 terminals (IP40 when enclosed)
  • Compatible with S200-series auxiliary contacts, shunt trips, and alarm contacts
  • Trip-free mechanism (cannot be held closed against fault current)
Applications:
  • Final circuit protection for lighting, socket outlets, HVAC, control panel branch circuits
  • Motor control circuit protection (Type K or D characteristic recommended for motors)
Installation Notes:
  • Tighten terminal screws to specified torque (typically 2.5–3.0 Nm)
  • Ensure upstream selectivity (discrimination) with main breaker
  • Do not exceed rated breaking capacity
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